Planning a fire alarm installation—especially an addressable system—often begins with preparing a Bill of Materials (BOM). But for many architects, consultants, and facility managers, creating an accurate BOM is a complex, time-consuming task. From estimating detectors and panels to wiring lengths, call points, modules, and other accessories — manual calculations can quickly become overwhelming, error-prone and inefficient. Why BOM Calculation for Addressable Fire Alarm Syste